CVE-2026-4724: Undefined behavior in the Audio/Video component
Mozilla · Firefox
Vendor fix available · Affected: Mozilla Firefox · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 44% of scored CVEs
DescriptionCVE.org
Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Mozilla · FirefoxVersions not stated
- Mozilla · ThunderbirdVersions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Reliance on Undefined, Unspecified, or Implementation-Defined Behavior · Input Validation and Logic
- Vendor
- Mozilla
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-4724 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.